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PyPI · pypi:langchain

langchain active

Building applications with LLMs through composability

Latest stable version1.4.2
Published2026-09-18 17:31:10 UTC
Requirespython <4.0.0,>=3.10.0
LicenseMIT
Advisories on latest versionnone known
Last verified2026-09-28 19:15:46 UTC
Sourcespypi.org

Maintenance

Activityactive
Last stable release2026-09-18 17:31:10 UTC · 10 days ago
Stable releases in the last 12 months57
Published versions519

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
1.4.22026-09-18 17:31:10 UTC
1.4.12026-09-16 17:06:45 UTC
1.4.02026-09-03 16:59:31 UTC
1.3.182026-08-27 17:33:11 UTC
1.3.172026-08-25 02:40:40 UTC
1.3.162026-08-20 14:35:13 UTC
1.3.152026-08-11 19:10:50 UTC
1.3.142026-07-16 13:28:16 UTC
1.3.132026-07-10 23:06:07 UTC
1.3.122026-07-08 22:38:11 UTC
1.3.112026-06-22 23:00:31 UTC
1.3.102026-06-18 19:42:58 UTC
1.3.92026-06-12 16:53:25 UTC
1.3.82026-06-12 04:20:33 UTC
1.3.72026-06-10 18:20:33 UTC
1.3.62026-06-10 00:53:01 UTC
1.3.5 withdrawn2026-06-10 00:15:20 UTC
1.3.42026-06-02 20:04:48 UTC
1.3.32026-06-02 18:20:07 UTC
1.3.22026-05-26 18:17:56 UTC

Showing the 20 most recent of 472 versions. JSON

Frequently asked questions

What is the latest version of langchain?

The latest stable version of langchain is 1.4.2, published on 2026-09-18. Verified by Vigia on 2026-09-28.

Is langchain deprecated?

No. langchain is not marked as deprecated in the registry.

Which Python version does langchain require?

langchain 1.4.2 declares this requirement: python <4.0.0,>=3.10.0.

Does langchain 1.4.2 have known vulnerabilities?

No known advisories affect langchain 1.4.2 according to the data Vigia checks.

Is langchain still maintained?

langchain published 57 stable releases in the last 12 months; the most recent was 10 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

Related packages

For agents

GET https://vigia.coredls.cloud/v1/packages/pypi/langchain
GET https://vigia.coredls.cloud/v1/packages/pypi/langchain/versions/{version}